You should contact them. I'm not sure. I get very good coverage in New England (even though I installed the unit below waterline level beneath my cabin sole (yes, high enough to alert me to bilge alarms) and haven't seen any noticeable "gaps" in my historical tracks on their web site.
Update -- now the anchor alarm does not work at all. If I set the alarm (at 50 yards as they suggest) I receive an immediate anchor alert and the function turns off by itself. I notified support early yesterday and have not heard back from them. I cannot recommend this product at this time.Update - my Boatcommand anchor alarm stopped working. I called support and they said the smallest setting for an anchor alarm is now 50 yards (mine was set for 30). The app showed “green” (no alerts) even after getting underway.I changed it to 50 yards and it works again, but my home mooring is 20 yards from a rocky shoal.
They removed the finer functionality without notice, rendering it useless as a safety feature, and based on this I can no longer recommend it except as an anti theft measure.
